References:
- Sinusitis - (https://en.wikipedia.org/wiki/Sinusitis)
- Sinus Infection - (http://acaai.org/allergies/types/sinus-infection)
- More on Sinusitis - (http://www.entnet.org/content/sinusitis)
- About Sinusitis - (https://www.nlm.nih.gov/medlineplus/sinusitis.html)
Editor: Dr. Simi Paknikar
Technically Checked by: Lingaraj